Merge TypeValue and AttributeValue about creco

[asutcl]

I have started the merge in the attribute_merge branch. A few things I want to post if anyone has objections please let me know.

I've created a few getters to get either a double, a string or a boolean. This should be done after checking the type against the Type enum.

Should we keep both INTEGER and DOUBLE in the enum or collapse them into a NUMERIC category with the possibility of having a STAR category for 5 star ratings?

I have marked the getValue() that returns an object as deprecated for now to give everyone the time to adjust their code.

[asutcl]

I have merged the main branch into the attribute_merge branch. There were a few conflicts with the SearchController. I didn't merge back into master. I have fixed them but if you were working on it please merge the attribute_merge into your code and fix conflicts if there are any and check that it still works as intended.

This issue will remain open because I have not merged back into the main due to this fact.

The ranges should also probably be moved to the ScoredAttribute class. This will require a bit of code reworking in the SearchController so I will wait to discuss this before doing so.

[asutcl]

AttributeValue is now deprecated, use TypedValue instead.